A carbon structure is visually a highly disordered structure.
It is for this reason that it lacks structural integrity .
A carbon structure forms at the edges or is the residue of other elemental compounds.
The disorder of this structure allows it to have many available bonds and and is responsible for building more complex carbon based molecules.
Two diverse species naturally breed an offspring, and selective preserves raver new traits in a given environment, (they evolve).
I hope this helps.=^⊃
Less developed countries have a higher rate of infant and maternal deaths than those of more developed country